Wrench.



ROBERT EARL HARSI-IELL, 0F GEORGES STATION, PENNSYLVANIA.

WRENCH.

Specification of Letters Patent.

Patented July 5, 1910.

Application 1ed January 12, 1910. Serial No. 537,633.

To all whom it may concern:

Be it known that I, ROBERT EARL IIAR- SHELL, a citizen of the UnitedStates of America, residing at Georges Station, in the county ofWestmoreland and State of Pennsylvania, have invented certain new anduseful Improvements in Wrenches, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to wrenches, and the objects of my invention areto provide a wrench consisting of comparatively few parts that can beeasily and quickly assembled to provide a strong and durable structure,and to provide 'a wrench that can be used either as a nut wrench or pipewrench.

Further objects of my invention are to furnish a nut wrench with areversible lever that will serve functionally as a handle inmanipulating the wrench when rotating a nut or similar object, and toprovide a wrench that is simple in construction, inexpensive tomanufacture and highly eilicient for variouspurposes.

These and such other objects as may hereinafter appear are attained bythe novel construction, combination and arrangement of parts to behereinafter specifically described and then claimed.

Reference will now be had to the drawing forming a part of thisspecification, where- 1n:-

Figure 1 is a longitudinal sectional view of a portion of a wrenchconstructed in accordance with this invention. Fig. 2 is a crosssectional view of the same. Fig. 3 is a side elevation of the shankdetached and forming a part of the wrench. Fig. 4 is a similar View of alever or handle detached and forming a part of the wrench, and Fig. 5 isa side elevation of the complete wrench.

In the accompanying drawings the reference numeral 1 denotes a shankrectangular in cross section and having the ends thereof provided withintegral or ixed gripping jaws 2 having confronting rightangularlydisposed gripping surfaces or faces 3. The outer and inneredges of the shank 1 are toothed, as at 4 and 5, respectively, for apurpose that will hereinafter appear.

Mounted upon the shank 1 is an adjustable clamping member consisting ofa body portion 6 having its inner face provided with a plurality ofteeth 9 adapted to engage the teeth 5 on the inner edge of the shank 1.Formed integral with the body portion 6 and projecting therefrom in adirection so as to straddle the sides of the shank 1 is a pair of arms 7of a length as to project beyond the teeth 4 on the outer edge of theshank 1. The body portion 6 at its outer face is provided with a slot orgroove 8 constituting a nut socket and which extends at right angleswith respect to the direction in which the shank 1 extends.

10 denotes a lever or handle which has one end extending between thearms 7, the said end being apertured as at 11 and extending through theaperture 11 and connected to the arms 7 is a pivot pin 12 employed forretaining the end of the lever between the arms 7. The opposite end ofthe lever or handle is bifurcated to provide gripping jaws 13, havingthe curved faces thereof provided with teeth 14. The lever or handle 10adjacent to the pivoted end thereof is provided with enlargements 15terminating in teeth 16, and these teeth are adapted to engage the teeth4 of the shank 1.

The gripping jaws 13 can be used for rotating a pipe or structure havingcylindrical surfaces, and since the adjustable clamping member can bemoved relatively to the jaws 2, nuts of various sizes can be gripped.The grooved outer face of the adjustable clamping member servesfunctionally as a Spanner wrench for a certain size of nut, and witheither the adjustable clamping member in engagement with a nut or thejaws 2 thereof, the lever or handle 10 will provide suiiicient leverageto operate the wrench.

There is suiiicient space for the shank 1 within the adjustable memberto permit of it being easily and quickly adjusted when the handle orlever 10 is swung out of engage-- ment therewith.

The wrench in its entirety is made of strong and durable metal and canbe used by machinists or other artisans.

I-Iaving now described my invention what I claim as new, is:

' 1. A wrench comprising a shank, jaws carried by the ends thereof4 andhaving confronting gripping surfaces, teeth carried by the inner andouter edges of said shank, a movable clamping member slidably mountedupon said shank and having its inner face provided with teeth engagingthe teeth on the inner face of the shank, arms projecting from saidmember and straddling said shank,

a pivoted lever `or handle arranged betweenY said arms and havingenlargements terminating in teeth adapted to engage the teeth upon theouter edge of said shank.

Q. A wrench comprising a toothed shank, a jaw' projecting from each endof the shank,

Y a movable clamping member arranged upon the shank and'coperating withsaid ]aws,

`and a lever pivotally mounted'in said member and having. opp'ositely`disposed enlargements terminating in teeth adapted to engage saidtoothed shank forsmaintaining said member in its adjusted position. 3. Awrench comprising a toothed shank.

a jaw projectingfrom each end ofthe shank wand opposing eachother,-amovable clampoperating with said jaws, and a lever havingk ingmember arranged upon the shank and coone end pivotally connected withsaid member andfurther having oppositely VdisposedV enlargementsterminating in teeth adapted to engage saidrtoothed .shank to preventshifting movement of'V said. member, said confronting gripping facesamovable clamp l Venlargements in proXimityto thepivoted end of saidlever.

, 4. A wrench` comprisingV a toothed shank, jaws'carried by the endsthereof and'having ing member arranged upon said shank and coperating,with said jawsand further provided with teeth adapted'to engage certainof the teeth of said shank,.. and ra ever pivotally mounted Yin saidmember and having opposite disposed enlargements yterminating in teethadapted to engage cert-ain of the teeth ofthe shank to prevent shiftingof said member, the teeth of said lever arranged in proximity to thepivot thereof.

4'In testimony whereof I affix my signature in the presence of twowitnesses.

ROBERT IEARL HARSHELL. wVVitnesses g JAMES HARSHELL, JESSE A. VOGELY.'

